Asus M5A99X EVO R2.0 User Manual page 114

3. When the Make Disk menu appears, select the FreeDOS command prompt item by
pressing the item number.
4. At the FreeDOS prompt, type d: and press <Enter> to switch the disk from Drive C
(optical drive) to Drive D (USB flash drive).
Welcome to FreeDOS (http://www.freedos.org)!
C:\>d:
D:\>
Backing up the current BIOS
To backup the current BIOS file using the BIOS Updater
Ensure that the USB flash drive is not write-protected and has enough free space to save
the file.
1. At the FreeDOS prompt, type bupdater /o[filename] and press <Enter>.
D:\>bupdater /oOLDBIOS1.rom
The [filename] is any user-assigned filename with no more than eight alphanumeric
characters for the filename and three alphanumeric characters for the extension.
2. The BIOS Updater backup screen appears indicating the BIOS backup process. When
BIOS backup is done, press any key to return to the DOS prompt.
ASUSTek BIOS Updater for DOS V1.30 [2012/12/22]
Current ROM
BOARD:
VER:
DATE:
PATH: A:\
BIOS backup is done! Press any key to continue.
Note
Saving BIOS:
3-42
Filename Extension
M5A99X EVO R2.0
0204
08/05/2010
Update ROM
BOARD: Unknown
VER: Unknown
DATE: Unknown
Chapter 3: BIOS setup